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Gonets (Russian Гонец, ''Messenger'') is a Russian civilian low Earth orbit communication satellite system. It consists of a number of satellites, derived from Strela military communication satellites. The first two satellites, which were used to test and validate the system, were launched by a Tsyklon-3 carrier rocket from the Plesetsk Cosmodrome on 13 July 1992, and were designated Gonets-D. The first operational satellites, designated Gonets-D1, were launched on 19 February 1996.〔 After launch, the first three satellites were given military Kosmos designations, a practice which was not continued with the other satellites.〔 Ten operational satellites and two demonstration spacecraft have been placed in orbit. A further three were lost in a launch failure on 27 December 2000. A new series of modernised Gonets satellites, Gonets-D1M, will supplement and eventually replace the satellites which are currently in orbit. A single first D1M satellite was launched by a Kosmos-3M rocket on 21 December 2005. A second D1M satellite was launched by a Rokot carrier rocket on 8 September 2010.〔 Gonets was originally a Russian Federal Space Agency programme, however in 1996 it was privatised, and it is now organised by Gonets SatCom. On 2013 the system consists of 5 satellites (3 Gonets-M and 2 Gonets-D1). On September 11 The Rokot carrier rocket, launched from the Plesetsk Cosmodrome, successfully put three Gonets-M communications satellites into the final orbit.〔(Russia Orbits 3 Telecoms Satellites – Defense Ministry )〕 ==See also== *Iridium *Globalstar *Orbcomm 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gonets」の詳細全文を読む スポンサード リンク
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